17 July 1991 - 18 July 1991
3 April 1991 - 9 April 1991
9 November 1990 - 11 November 1990
21 September 1990 - 23 September 1990
10 August 1990 - 14 October 1990
1 August 1990 - 8 August 1990
3 April 1990 - 11 April 1990